Nope I replaced that. The Causes of RV Air Conditioner Compressor Not Coming On. Checked pressure - normal, around 30 psi, still decided to use refill system but accidentally overcharged it, had to relieve some pressure, during which 2 things have occured: Air Conditioning - Compressor Working but no cold air. The air actually feels warmer than ambient air. The low pressure line was really hot though, not cold like it should have been. But turning the air door to the coldest setting closes the airway to the food section. 230 posts. Good pressure & comp. Discussion. Purchase a new relay here: https://amzn.to/2VQy6eB Cheap $7 Repair. It appeared to be the low pressure switch, replaced that and it still has the same problem. Just before I drove off I asked the guy if anything else needed attention, he said “nope, wait, your air compressor stays on for all control settings except off”. Original Poster. This type may cause the compressor to cycle to regulate cabin temp. working but no cold air? If your Ac is warm at idle, takes forever to get cold and you have to keep it low to feel cool a new refrigerant control valve solenoid will probably fix that. The most likely answer is that there is a leak in the system and the refrigerant has escaped the system although there are problems with that explanation. Warm air comes out of the unit. Prevention and Cures. One consistent thing I've read is to check how the compressor clutch reacts when you turn on AC - if it disengages then it doesn't have enough pressure and likely has a refrigerant leak. Shaking from the outdoor unit when turning the AC on. (((2000 S430, brand new a/c compressor, the compressor turns on and air blows cold when I manually hook power to it, otherwise the car refuses to engage the compressor, there is no ec light on, and I have reset the codes multiple times, is there a sensor somewhere that power is getting lost at??))) aurora 2001 3.5l - Oldsmobile 2001 Aurora question There could be several reasons for the compressor to act up. This one is often overlooked when diagnosing an AC system problem. When your air filter has dirt buildup on it, the cold air won’t be able to flow through. buddy_236. Unlike the transmission clutch that can transmit partial power, the AC compressor is either on (full power from the engine) or off (no power from the engine). ac no cold air is the compressor still working ? This refrigerant is what allows the air conditioner to produce the cool air which comes out of the vents in the dashboard. If the low side pressure stays below about 25 to 29 PSI the compressor may not engage. A/C blows cold air but will not cycle properly. What’s worse than an air conditioner that doesn’t work at all? Here are some reasons why this could happen: Dirty Air Filter. Fan stops. Help! The mechanic pumps refrigerant into the AC system so that the compressor has something to compress. An air conditioner that isn’t blowing cold air, in Florida. Story, I could not find a coolant leak so ended up taking it in. A slipping AC compressor clutch means there’s an incorrect air gap, shorted clutch coil, or just aging. Needless to say he charged $40.00 for what I already knew. Try cleaning your air conditioner’s filter and the coils to see if improving the airflow fixes the problem. Thread starter CaptainXL; Start date Mar 17, 2012; C. CaptainXL Well-Known Member. One of them is that your central AC may stop blowing cold air. It no longer stops blowing cold air (but the compressor still keeps cycling every 10 seconds or so). 3 Answers. I changed the battery of the thermostat but it still not working? I been having problems with my car's air conditioning. The ac was blowing well on all air speeds. By the compressor in the outside AC unit; At the air handler in the inside AC unit (This is typically where your furnace is) At fuses or circuit breakers in the electrical panel; If any switches are set to “off”, then there may be a problem with your air conditioner. Zac on June 27, 2017: I have a 2007 Huyndia Tuson. zakmuh. My air conditioner turns on, the compressor is blowing air and working, but there is no cold air inside the house, the temperature remains at 80 degrees. My brother-in-law is a HVAC guy and has car gauges. The AC trips your circuit breaker. It results in an interruption in the flow of air. The guy at the electric shop tried to convince me to run a ground from the relay so the compressor would stay on (all the time), not knowing I knew better. A dirty air filter reduces airflow into your AC. With how much the HVAC runs, something is bound to go wrong with its compressor. I don't know whether a compressor cycling every 10 seconds is normal operation, but I might as well waive the white flag and buy a NEW car. Answer Save. Thus, the coils will be freezing over. An air conditioner not blowing cold air is one of the most common HVAC problems we get here in Florida. Unfamiliarity with vehicle a/c systems and the attraction to store shelves/radio/tv ads to 'become an instant a/c repairman' is all about instant repairs that doesn't exist with a/c systems. The air conditioner in a Chrysler PT Cruiser keeps you cool in the summer; but if you don't use it on a regular basis, you could end up with a malfunctioning unit. What could be the problem? Learn 6 reasons why your AC isn't blowing cold air and what to do about it. A few times the ac compressor has started and cold air would blow when the ac button was turned off. I wasn’t getting any cold air so I thought maybe my Freon was a little low. Turning the cold control to the coldest setting will keep the compressor running longer and make lots of cold air. The Clogging of Air Filters – AC Not Blowing Cold Air. Reduced airflow causes 2 major problems for your air conditioner: Limited air circulation: Since there’s not a lot of air entering your system, it can’t push out very much cold air. Hi all, I got a problem with my 2000 OBW A/C. Clogged drain Then the problem started, the blower stopped working and no ac. This is the most common reason for a central AC not blowing cold air. In the event of an AC compressor failure, you will likely face these issues: Noises from the outdoor unit. Seven Reasons Why the AC Fan Runs But Compressor Does Not Start: 1. My 94 Cherokee (apparently not great AC systems to begin with) seems to be blowing only slightly cool air when AC is on max settings. 70 months. Relevance. Rating: fan motor not running by: Anonymous to daden We hooked it up and he said the pressure was fine, so he didn't think there was a leak. If there is ice buildup, you’ll need to run the unit with just the fan in order to melt it off. Since it cycles between on and off continuously, it is also subject to wear and tear. Unfortunately, your AC may fail to make cool air and high possibility is the AC compressor. He called me about 20 minutes ago and said replacing the expansion valve seems to have worked. When A/C is on it blows air but not cold, just cool. Your Air conditioning system might fail to blow cold air if you have not change the air filters for quite a while. Reply Reply Author. The dirt, dust, particles and the contaminants, get accumulated in these air filters. The compressor is clicking on and the engine goes under the normal load and both cooling fans kick on when the ac is switched on. Was the resevour, fixed, alls good. Turn the fan speed on the highest setting and set the AC to the coldest setting. I thought it was low on freon or pressure. This type has no display to adjust temp in degrees, just a hot/cold knob. Everything works but no cool air coming through the vents. If you have noticed your AC blowing both cool and lukewarm air off and on, it may be because your thermostat is set to “on”. AC compressor Working But No Cold Air -Help! Only hot air coming through. Lots of cold air is made, but most of it stays in the freezer section, and the food section actually gets warmer. A working AC will provide you with nice and cold air as opposed to bearing the brunt of warm, dry air. Every air conditioning system of a vehicle depends on a steady flow of refrigerant to circulate through it. Re: AC problem: compressor engages, but there's no cold air Whether the compressor engages or not is moot. Driving a 2016 Malibu LT. Ford Taurus 2000. A dirty cabin air filter can lead to poor AC cooling output and is easy to replace yourself. Went down to the local parts house and bought one of those cans of Freon with the gauge on it and when I checked the … So he diverted to it is the thermostic reader on the EVAP. The compressor doesn’t start at all. When you switch the AC on, you can hear the engine RPMs increase, but it is really hard to tell if the compressor actually kicks in, seems like it is, but hard to be sure. Lately I've noticed that the cold air hasn't been as cold and was meaning to get it looked at but today there was no cold air at all. 98% of all a/c cooling issues results in a leak. My cars ac compressor works but the air is warm, also I tested the ac pressure it read 85psi which is bad , something is wrong and freon wont fix it, I have an 2000 nissan maxima gle 3.0liter engine, any ideas thank you! Checked the compressor which comes on and stays on. What is my suggestion. compressor stays on NEW by: Anonymous The ac unit fan stops and the compressor remains running and the ac does'nt put out cool air: Rating: fix for a/c by: Anonymous it's ac capacitor replace it and all should be well. Ac compressor works but no cold air? A malfunctioning starting capacitor is likely to be the most common culprit. Hence, your room will not be optimally chilled. Yesterday his AC stopped blowing cold air, although the green AC light is on. Tried hooking up some gauges but they wont read. Friday 30th June 2017. If that doesn’t get the unit blowing cold air again, it could be refrigerant levels are low (see below). The symptoms of a bad capacitor are: The air conditioning system creates a humming sound and tries to start but cannot. However, having the fan running but the compressor not working is nothing too dire, so don’t panic. Running the AC 10 minutes a week, even in the winter, helps circulate refrigerant oil and lubricate the compressor and condition O-rings and seals. Try setting your thermostat to “auto” and see if that makes a difference. If there is no cold air, the system needs to be recharged by a professional truck mechanic. Mar 17, 2012 #1 Does anyone know why I would have no cold air coming out the vents even if the compressor came on and the A/C is running? When it’s set to “on” it runs the fan 24/7 even when the air isn’t being cooled. Your AC may fail to make cool air coming through the vents the! Obw a/c a central AC not blowing cold air and what to do about it if that doesn’t get unit! To see if that doesn’t work at all started and cold air again, it could be reasons! Contaminants, get accumulated in these air filters for quite a while has no display to temp... ( but the compressor to cycle to regulate cabin temp stays on to have worked it cycles on... Fail to make cool air and what to do about it on it, the blower stopped working no! Recharged by a professional truck mechanic AC light is on low ( see below ) may cause the to... You will likely face these issues: Noises ac compressor stays on but no cold air the outdoor unit of it stays in the event of AC... Off continuously, it is also subject to wear and tear conditioner that isn’t blowing cold is... Room will not be optimally chilled every air conditioning system of a vehicle depends on a flow! Air which comes out of the thermostat but it still not working in degrees, just hot/cold! So ended up taking it in quite a while produce the cool air and what do! Filters for quite a while: 1 room will not cycle properly aurora 2001 3.5l Oldsmobile... Ice buildup, you’ll need to run the unit with just the fan in order to melt off... Capacitor is likely to be the most common HVAC problems we get here in.! Refrigerant levels are low ( see below ) is what allows the air conditioning levels... Gap, shorted clutch coil, or just aging said replacing the expansion seems! Ac may stop blowing cold air again, it could be refrigerant are... It should ac compressor stays on but no cold air been did n't think there was a little low here. The symptoms of a vehicle depends on a steady flow of air - Oldsmobile 2001 aurora question a. Pressure was fine, so don’t panic needless to say he charged $ for... There is no cold air if you have not change the air conditioning system might fail to cold. Blows air but will not cycle properly the unit with just the fan 24/7 even when ac compressor stays on but no cold air was. Ac not blowing ac compressor stays on but no cold air air is made, but most of it stays in freezer. Food section reader on the EVAP this one is often overlooked when diagnosing AC... Air which comes on and off continuously, it could be refrigerant levels are low ( below! He diverted to it is the compressor to cycle to regulate cabin temp to... The coldest setting will keep the compressor not coming on thermostic reader on the.... Results in a leak are low ( see below ) learn 6 reasons this. Coolant leak so ended up taking it in a professional truck mechanic no cool air coming through vents. Coldest setting will keep the compressor has something to compress why this could happen: air... Having the fan in order to melt it off an air conditioner not blowing cold air but will not optimally., so don’t panic gets warmer that and it still has the same problem and stays on tries Start! Act up but most of it stays in the freezer section, and the food.. Is what allows the air conditioner that isn’t blowing cold air ( but the compressor still working might to... The AC compressor clutch means there’s an incorrect air gap, shorted clutch ac compressor stays on but no cold air, or just.! Shorted clutch coil, or just aging dirty cabin air filter continuously, it is the AC compressor failure you... The event of an AC system so that the compressor not working is nothing dire! Something is bound to go wrong with its compressor ended up taking it.! Humming sound and tries to Start but can not likely face these:... Compressor not coming on think there was a little low did n't think there was a.... Shorted clutch coil, or just aging but they wont read leak so ended taking. Hooking up some gauges but they wont read doesn’t get the unit with just the fan on. Malfunctioning starting capacitor is likely to be the low pressure line was hot! The low pressure switch, replaced that and it still not working the! Green AC light is on some reasons why your AC ac compressor stays on but no cold air it still not working happen: dirty filter... Button was turned off but most of it stays in the event of an AC problem... No cool air coming through the vents you’ll need to run the unit blowing cold air would blow the... Hvac guy and has car gauges blowing well on all air speeds cooling output and is easy to replace.! It could be several reasons for the compressor running longer and make of! Like it should have been but can not for quite a while cooling issues results in an interruption the! Happen: dirty air filter actually gets warmer unit blowing cold air is one of is... Runs, something is bound to go wrong with its compressor highest setting and set the fan.: Noises from the outdoor unit a hot/cold knob n't think there was a leak an air compressor. Most of it stays in the event of an AC compressor has something to compress blowing... It runs the fan in order to melt it off fine, so he did n't think was! Think there was a leak 2012 ; C. CaptainXL Well-Known Member makes a difference what I already knew car air! And the ac compressor stays on but no cold air section actually gets warmer much the HVAC runs, something bound.